句子的语法正确吗

显示全部楼层 · 2010-11-25 23:41:43

1.The work has been completed, but it has not been reviewed by teacher.
2.The work was completed, but it has not been reviewed by teacher.
3.The work was completed, but it was not reviewed by teacher.
三个句子都是正确吗？用法有甚麼分别呢

千问 · 2010-11-25 23:41:43

1.说的是工作到现在已经完成了，有一个时间点，从那个时间点到现在已经完成，可是到现在老师还没检阅。2.说的是工作在过去某个时间就完成了，后面半句同13.前半句同2，后面说的是老师在以前还没阅过，现在阅没阅不知道That is all.望采纳

千问 · 2010-11-25 23:41:43

都是对的，是时态的区别从而导致所要表达的信息有所区别：第一句强调现在完成时，意思是过去发生的事对现在还有影响：我作业已经做好了，但还没有让老师检查。（从你做好到现在止，老师还没有检查）第二句第三句由此类推可以看出细微的差别了吧！语法很奇妙但也很枯燥，加油哦

千问 · 2010-11-25 23:41:43

第二个是对的